What is a window manager?

A Window Manager is a software component that controls the placement and appearance of windows within a graphical user interface on a computer. It allows users to open, close, move, resize, and organize application windows on their desktop. Window managers are commonly used in Unix-like operating systems, especially Linux, and can be standalone or part of a desktop environment. They can be highly customizable, offering features such as keyboard shortcuts, virtual desktops, and different window layouts to improve productivity.